Home / 20,102.50-30,187.77-13,094.38

Finding the Fourth Proportional to 20,102.50, 30,187.77 and 13,094.38

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Solution

The fourth proportional to 20,102.50, 30,187.77 and 13,094.38 is: 19,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.50 : 30,187.77 = 13,094.38 : x
  2. Step 2: Convert to fraction form
    20,102.50/30,187.77 = 13,094.38/x
  3. Step 3: Cross multiply
    20,102.50x = 30,187.77 × 13,094.38
  4. Step 4: Simplify right side
    20,102.50x = 395,290,131.73
  5. Step 5: Solve for x
    x = 395,290,131.73/20,102.50
  6. Step 6: Final answer
    x = 19,663.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.